(3OQGSGJ COHjI h fMhjI (B: s (3KbGaI YGeI (B/ s - (3GdeUQj, eMeO YHO GdZfjs ((3YeGf (B:s (3OGQ GdaQbGf,s, 1983)
Keywords: (3GdCOH GdYQHjs; (3GddZI GdYQHjIs; (3bhGYO GddZIs